Answer:

Step-by-step explanation:
From the diagram you can see that
- 17 people watch only basketball;
- 7 people watch both basketball and soccer;
- 12 people watch only soccer;
- in total, 17+7+12=36 people watch some sports;
- so, 49-36=13 people do not watch sports.
So, you can fill the table in following way

First Let we solve the Original system of equations:
equation (1): 
equation (2): 
Multiplying equation (1) by 7, we get


Subtracting,
implies 
Then
Thus the solution of the original equation is
Now Let we form the new equation:
Equation 2 is kept unchanged:
Equation (2):
Equation 1 is replaced with the sum of equation 1 and a multiple of equation 2:
Equation (1): 
Now solve this two equations: 
Multiply (1) by 7 and (2) by 8,


Subtracting,
implies 
Then x=2.
so the solution for the new system of equation is x=2, y=1.
This Show that the solution to the system of equations 8x − 5y = 11 and 7x − 8y = 6 is the same as the solution to the given system of equations
Answer:
x = 20
Step-by-step explanation:
Assuming that both 6x and 120 are equal to each other, you can use simple algebra to find out what x is
6x = 120 (divide both sides by 6 to isolate x)
x = 20
Answer:
y=5,2 and -3
we have to put the values of X and then solve the equation.
<h2>Have a good day</h2>
Answer:
50*
Cause if u know a right angle is 90* then u add it it gets 130 then you take that away from 180 what leaves you with 50